You need the device attached if you are changing the email address as it writes it back to the device.
To change the ownership of a device, or swap an old device out so as to keep your original email for your newly purchased replacement:-

Click "Change username" and enter a different email address (twice) and save

Click "change password" (optional) and save if changed

Click "change personal details" (optional) and save if changed

Click on "Log out"

Disconnect the old device

Connect the new device

Move the mouse over the TomTom logo and then point at and click on "Log in"

Select "Account details" and log back in with your original email and password

In the panel "Connected device is not linked to this account" click on "> Link the connected device to this account" and follow the advice on the screen.

Then check for updates; doing the software first, followed by the maps, then the speed cams (NOT all at once )

This procedure does not transfer any the information from the old one to the newer one. So if selling remember to clear all personal details from the old device, like Home, Favourites, Recent destinations, My places, My Routes, etc.

If a person is selling the device (or giving it away), by using the new users email address you have the key for a successful exchange as you can send the device and only send the password when it has arrived and the payment has cleared. :cool:

Sorry to all those who have landed here in the hope of solving your problem your self, but TomTom in there wisdom have now made it impossible to change the email associated with your device, you will now have to contact Customer Service to get them to do it for you!!

Sorry to all those who have landed here in the hope of solving your problem your self, but TomTom in there wisdom have now made it impossible to change the email associated with your device, you will now have to contact Customer Service to get them to do it for you!!

The website link to 'myTomTom/accountdetails/' no longer works, all I get on the page is comment to use TomTom My Drive Connect. If I use My Drive Connect and follow the instructions from 8 to 11 I do not get the option to get to account details if I have the Go 5200 wifi actually connected. Currently I dare not change the Go 5000 email address incase I cannot restore it on the Go 5200